client.c

一个网络传输文件程序

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "parse_cmd.h"
#include "client_send_receive.h"
#define SERV_PORT 8888

int sockfd;
command cmd;
struct sockaddr_in servaddr;

int creat_socket()
{
	struct sockaddr_in servaddr;

	if((sockfd=socket(AF_INET,SOCK_STREAM,0))<0){
		printf("socket error\n");
		exit(0);
	}
	bzero(&servaddr,sizeof(servaddr));
	servaddr.sin_family=AF_INET;
	servaddr.sin_port=htons(SERV_PORT);
	if(inet_pton(AF_INET, cmd.IP, &servaddr.sin_addr)<=0){
		printf("inet_pton error\n");
		exit(1);
	}
	if(connect(sockfd,(struct sockaddr *)&servaddr,sizeof(servaddr))<0){
		printf("connect error\n");
		exit(1);
	}
	
//	printf("OK!\n");
	return 0;
}



int main(int argc, char **argv)
{
	if(argc!=3){
		printf("bad command!\n");
		exit(1);
	}

	if(parse_cmd(argv[1], argv[2], &cmd)!=0)								/****** parse command ******/
		exit(1);

	if(creat_socket()!=0)													/****** create socket ******/
		exit(1);
	
	client_send_receive(sockfd,cmd.type, cmd.clientpath, cmd.servpath);		/** communicate to server **/ 
	
	close(sockfd);
		return 0;
}